即使更改路径变量后也找不到命令
使用 Heroku 进行部署，同时通过 Michael Hartl 在 Ubuntu 11.04 Natty Narwhal 上编写的 Ruby On Rails 教程学习 Rails。我使用它安装了它
sudo gem install heroku
，并且命令似乎在终端中的该会话中运行良好。下次上班时，我尝试了命令“heroku open”，并被告知“heroku：命令未找到”。在这里查看类似问题的一些答案，似乎答案是运行，
gem enviroment
它返回以下内容：
RubyGems Environment:
- RUBYGEMS VERSION: 1.3.7
- RUBY VERSION: 1.8.7 (2010-08-16 patchlevel 302) [i686-linux]
- INSTALLATION DIRECTORY: /var/lib/gems/1.8
- RUBY EXECUTABLE: /usr/bin/ruby1.8
- EXECUTABLE DIRECTORY: /var/lib/gems/1.8/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86-linux
- GEM PATHS:
- /var/lib/gems/1.8
- /home/richard/.gem/ruby/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
然后我运行
$ export PATH=$PATH:/var/lib/gems/1.8/bin
，它似乎解决了问题。然而，下次我尝试在终端中运行heroku时，我再次被告知“命令未找到”！运行“export PATH=$PATH”命令似乎每次都能解决问题，但我宁愿不必每次想使用 heroku 时都运行此命令。有没有永久解决问题的办法？
Using heroku for deployment while learning Rails with the Ruby On Rails tutorial by Michael Hartl, on Ubuntu 11.04 Natty Narwhal. I installed it using
sudo gem install heroku
and the commands seemed to run fine for that session in the terminal. The next time I went to work, I tried the command "heroku open" and I was told "heroku: command not found". Looking at some of the answers to similar problems here, it seemed the answer was to run
gem enviroment
which returned the following:
RubyGems Environment:
- RUBYGEMS VERSION: 1.3.7
- RUBY VERSION: 1.8.7 (2010-08-16 patchlevel 302) [i686-linux]
- INSTALLATION DIRECTORY: /var/lib/gems/1.8
- RUBY EXECUTABLE: /usr/bin/ruby1.8
- EXECUTABLE DIRECTORY: /var/lib/gems/1.8/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86-linux
- GEM PATHS:
- /var/lib/gems/1.8
- /home/richard/.gem/ruby/1.8
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
I then ran
$ export PATH=$PATH:/var/lib/gems/1.8/bin
which seemed to fix the problem. However, the next time I tried to run heroku in the terminal, I was told "command not found" again! Running the "export PATH=$PATH" command seems to fix the problem every time, but I would rather I didn't have to run this command everytime I want to use heroku. Is there any permanent solution to the problem?
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如果您使用
bash作为 shell，则将该导出行添加到主目录中的.bash_profile中。 zsh 的等效项是.zshrc，其他 shell 都有自己的文件，可以为每个 shell 会话自动加载。If you're using
bashas your shell, then add that export line to.bash_profilein your home directory. The equivalent for zsh is.zshrc, and other shells have their own files to automatically load for every shell session.